Teradyne, Inc. (TER) shares rose 3.5% to $333.76 at the July 20, 2026 close, a moderate gain from the prior close of $322.36. That close is the latest confirmed price for TER; a live quote was not available. BestStocks flagged the session as a major change for TER. Below, we break down what changed for TER, why it matters for investors, how the stock reacted, and the catalysts on the calendar.
What happened
TER climbed 3.5% to $333.76
TER rose 3.5% in its latest session, moving from $322.36 to $333.76.
ValuationWeak confidence
Rel. volume
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Calculating
Vs peers
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No comparable peers
Market cap
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Earnings in
7d
2026-07-28
Price chart
Jun 22 – Jul 21
E earnings
F filing
A analyst
V/N other
click a marker to highlight
Change events — click to jump to details
What it means for Teradyne, Inc. investors
For Teradyne, Inc. investors, the recent signals are mixed, leaving the near-term picture neutral / mixed. On the constructive side: Positive 3.5% session move; Positive price momentum. Weighing against that: Teradyne, Inc. (TER) moved -5.79% from $342.12 to $322.30 on 2026-07-16; Teradyne, Inc. (TER) moved -5.14% from $359.60 to $341.11 on 2026-07-13. BestStocks rates the overall signal quality weak (0/100). With earnings roughly 7 days out, the next report is the most likely near-term test of the move.
TER price reaction
TER last traded at $333.76, up $11.40 (+3.54%) from the previous close of $322.36. Over the past month the stock has ranged between $322.30 and $483.84, and it currently sits about 7% of the way up that band.
The bull and bear case for TER stock
Weighing the constructive signals against the risks, here is how the bull and bear case for Teradyne, Inc. (TER) lines up on the latest data.
▲ The bullish case
+Positive 3.5% session move.
+Positive price momentum.
+Teradyne, Inc. (TER) moved +2.83% from $369.09 to $379.52 on July 6, 2026.
▼ The bearish case
−Teradyne, Inc. (TER) moved -5.79% from $342.12 to $322.30 on 2026-07-16.
−Teradyne, Inc. moved -8.92% intraday from $379.52 to $345.66.
Bull vs bear balanceNeutral / Mixed
BearishNeutralBullish
Weighing both sides, BestStocks' composite read of recent signals is roughly balanced, as the bull-versus-bear meter above shows. This is an educational summary of the bull and bear case, not investment advice.
Teradyne rose 6.86% to $344.48, driven by rising semiconductor test demand and new product momentum. According to Zacks, the strength is supported by a new AI-focused test cell developed with Tokyo Electron and growing momentum in the company's robotics segment, with shares gaining 7.2% on these tailwinds.
Risk2026-07-16-5.8%
Teradyne, Inc. (TER) moved -5.79% from $342.12 to $322.30 on 2026-07-16. We checked news, earnings, analyst updates, SEC filings, and corporate actions — no company-specific catalyst was found. The move appears to be technical: TER reached a new 30-day low on modestly elevated volume (1.3x the 5-day average).
Teradyne fell 6.58% to $329.98 intraday on light volume (0.47x expected), with no specific news catalyst identified in available sources. The stock was among top performers in Carillon Eagle Mid Cap Growth Fund's Q2 2026 portfolio, and earnings are scheduled for release after hours on July 28, 2026.
Activity2026-07-14+3.6%
Teradyne, Inc. (TER) moved +3.55% from $341.11 to $353.23 on 2026-07-14. We checked news, earnings, analyst updates, SEC filings, and corporate actions — no company-specific catalyst was found.
Risk2026-07-13-5.1%
Teradyne, Inc. (TER) moved -5.14% from $359.60 to $341.11 on 2026-07-13. We checked news, earnings, analyst updates, filings, and corporate actions — no company-specific catalyst was found. The decline coincided with TER reaching a new 30-day low; volume remained near its 5-day average.
Teradyne shares surged 7.62% to $378.36 in early intraday trading, extending gains from a +2.47% close on July 8 (per Zacks). The move builds momentum after recent market strength, though no company-specific catalyst has been identified in available sources at this early session stage.
Teradyne, Inc. moved -8.92% intraday from $379.52 to $345.66. 3 AI Infrastructure Stocks to Buy in July: Robotics and AI infrastructure stocks have ripped higher in 2026, and the path of least resistance still points up as humanoid pilots scale and AI data center spend keeps compounding. Three names give investors different [2026-07-07]
Teradyne fell 6.13% to $346.46 in intraday trading, but no breaking news catalyst appeared in today's evidence. Recent bullish coverage from Zacks (July 6) highlighted TER's strong earnings surprise history, and 247wallst positioned it as a top AI infrastructure play (July 7) amid strength in robotics and AI data center spending. The decline diverges from this positive framing and broader tech strength noted in market updates.
Upcoming catalysts & outlook
Next earnings
2026-07-28
in 7 days
Thesis shift
Neutral / Mixed
bullish signal
Risk level
High
from change events
Frequently asked questions about TER
Why did Teradyne, Inc. (TER) stock move?
TER rose 3.5% to $333.76. No single company-specific catalyst was confirmed during the move window, and it looks technical.
How much did TER stock rise?
TER gained 3.54% ($11.40) versus the prior close of $322.36, last trading at $333.76.
When is Teradyne, Inc.'s next earnings date?
TER's next earnings report is scheduled for 2026-07-28 — about 7 days away.
How BestStocks tracks TER
This page is generated automatically by BestStocks' change-detection system after its price and volume cleared TER-specific materiality thresholds, triggering an evidence check. It draws on 16 tracked change events for TER, cross-checked against the data sources listed below. A live intraday quote was not available, so price and volume figures are the confirmed end-of-day close from July 20, 2026 — not the current price — and the percentage move is that session's. They refresh once live quotes resume. For companies with multiple share classes, market-cap figures can differ by data source. Analyst price targets and ratings are FMP consensus. This is an educational summary of what changed and why — not personalized investment advice.
